NVIDIA GeForce 840A vs NVIDIA GeForce GTX 765M

VS

NVIDIA GeForce 840A

NVIDIA GeForce GTX 765M

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840A and 2GB VRAM GeForce GTX 765M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840A 's Advantages

Released 10 months late

Boost Clock has increased by 30% (1124MHz vs 863MHz)

Lower TDP (33W vs 75W)

NVIDIA GeForce GTX 765M 's Advantages

Larger VRAM bandwidth (64.13GB/s vs 16.02GB/s)

384 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 840A

0.863 TFLOPS

GeForce GTX 765M +53%

1.326 TFLOPS

GeForce 840A

VS

GeForce GTX 765M

Graphics Card

Mar 2014

Release Date

May 2013

GeForce 800A

Generation

GeForce 700M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

1029 MHz

Base Clock

797 MHz

1124 MHz

Boost Clock

863 MHz

1001 MHz

Memory Clock

1002 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

16.02GB/s

Bandwidth

64.13GB/s

Render Config

-

384

Shading Units

768

16

TMUs

64

8

ROPs

16

-

64 KB (per SMM)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

13.81 GPixel/s

17.98 GTexel/s

Texture Rate

55.23 GTexel/s

-

863.2 GFLOPS

FP32 (float)

1326 GFLOPS

26.98 GFLOPS

FP64 (double)

55.23 GFLOPS

Board Design

33W

TDP

75W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM108

GPU Name

GK106

-

GPU Variant

N14E-GE-B-A1

Maxwell

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

2.54 billion

Unknown

Die Size

221 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

5.0

CUDA

3.0

5.1

Shader Model

5.1

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